JP2000064089A - Vertical plating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical plating device by which continuous electroplating is conducted without damaging the surface of a resin film even if the film is transported with a low tension at the time of continuously electroplating a long-sized film-shaped conductive material and consequently capable of attaining high productivity. SOLUTION: This continuous electroplating device is composed of at least one vertical electroplating soln. tank 3, at least one submerged roller provided in the tank and at least one driving roller 5 furnished above the tank. In such a case, a driving means 11 is fixed to the driving roller 5, a driven means 12 rotated by the power of the driving means 11 is fixed to the submerged roller, further a power transmitting means 13 to transmit the power of the driving means is interposed between both means 11, 12, and the submerged roller is rotated by the driving roller at the same circumferential speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reel-to-reel system for transporting a long resin film such as a copper-coated polyimide resin film and continuously electroplating the film. The present invention relates to a plating apparatus having a vertical electroplating bath, and more specifically to a vertical plating apparatus in which a driving method of a submerged roller provided inside the resin film for changing the conveying direction is improved. is there.

[0002]

2. Description of the Related Art Conventionally, in an apparatus for carrying out electroplating of a resin film through a driving roller to continuously perform electroplating in a vertical electroplating bath, the film feeding direction is set in the vertical electroplating bath. The submerged roller for changing is a non-driving type free roller, which is attached to the liquid tank via a bearing and is rotated by friction with the resin film being conveyed. The reason why the submerged roller in the vertical electroplating bath is a free roller is that the submerged roller that needs to be extended to the outside of the plating bath in order to drive the submerged roller. This is because it is difficult to seal between the rotary shaft and the side wall of the liquid tank, and it is difficult to synchronize the rotation speed of the submerged roller with the transport speed of the resin film when the submerged roller is driven.

By the way, when a film-shaped conductive material is manufactured by continuously electroplating a resin film provided with a conductive layer, dimensional stability (resin film before and after electroplating) is the most important item of product specifications. The degree of expansion and contraction of the resin film must be satisfied, and therefore the resin film must be conveyed with low tension. On the other hand, if the tension of the resin film is reduced to secure dimensional stability, the frictional force between the submerged roller and the film due to the non-drive type free roller is reduced, so the rotational force transmitted to the submerged roller is reduced. May decrease, and as a result, the rotation speed of the submerged roller is not synchronized with the transport speed of the resin film, the film slips on the outer peripheral surface of the submerged roller, and scratches occur on the resin film surface. There was a problem.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and when a long film-shaped conductive material is continuously electroplated, a resin film is conveyed with low tension. Also enables continuous electroplating without causing scratches on the resin film surface,
Therefore, it is an object of the present invention to provide a vertical plating apparatus capable of achieving high productivity.

[0005]

To achieve the above object, the present invention provides at least one vertical electroplating bath, and at least one submersible roller provided in the bath.
In a continuous electroplating apparatus composed of at least one drive roller provided above the liquid tank, a drive means is fixed to the drive roller, and the submerged roller is rotated by the power of the drive means. The driven means is fixed, and a power transmission means for transmitting the power of the driving means to the driven means is interposed between the both means,
It is characterized in that the drive roller is configured to rotate the submerged roller at the same peripheral speed, and the drive means meshes with a drive spur gear coaxially fixed to the drive roller. And a driven spur gear fixed to the submerged roller coaxially with the driven spur gear, and a drive spur gear arranged to mesh with the driven spur gear. The power transmission means is disposed between the two wheels, a wheel fixed coaxially to the driven spur gear of the drive means, a wheel fixed coaxially to the drive spur gear of the driven means. A pair of wheels that are installed side by side coaxially with each other, one of the pair of wheels being fixed to the driven spur gear of the drive means, and the other of the pair of wheels being the drive wheel of the driven means. It is synchronized with the wheel that is fixed to the gears Those characterized by.

Further, in the present invention, auxiliary power transmission means for transmitting the power transmitted to the submersible roller to an additional submersible roller provided in the plating solution tank is further provided, and the auxiliary power transmission is provided. The means comprises wheels fixed coaxially to each of said submersible rollers, said wheels being operatively coupled and rotating synchronously, and said operative coupling being implemented by a chain comprising said wheels as sprockets. ,
Alternatively, it is preferable that the vehicle is constituted by a pulley and is implemented by a belt, and further, the driven spur gear of the drive means, the drive spur gear of the driven means, and the pair of vehicles of the power transmission means are on the same support. The vertical plating apparatus is provided and the support is mounted in the liquid tank.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings. FIG. 1 is an overall schematic view showing an embodiment of a plating apparatus having a vertical electroplating bath for continuously electroplating a resin film in a reel-to-reel system according to the present invention, and FIG. 1 is a schematic explanatory view showing an embodiment of a vertical plating apparatus according to
a, 1b, 1c are submersible rollers, 2 is a resin film to be conveyed, 2a is a resin film provided with a conductive layer, 2b is a film-shaped conductive material, 3 is a vertical electroplating bath, 4 Is a plating solution filled in the plating solution tank, 5 is a driving roller for transporting the resin film 2, 6 is a free outside roller, 7 is a delivery roller, 8 is a take-up roller, 9 is an anode, and 10 is It is a support.

In the present invention, the resin film 2a provided with the conductive layer is sent out from the sending roller 7 by the driving roller 5 provided above the vertical electroplating bath 3, and the vertical solution filled with the plating solution 4 is used. It is fed into the mold electroplating bath 3 and electroplated by the anode 9 in the electroplating bath 3. Then, the film-shaped conductive material 2b as a product is taken up by the take-up roller 8, and the conveying direction of the resin film 2 is changed by the submerged rollers 1a, 1b, 1c in the plating solution tank 3.

An example of a mechanism for transmitting power from the drive roller 5 to the submerged roller is constructed as follows. That is, as shown in FIG. 2, the driving means 11 of the mechanism is composed of a pair of spur gears meshing with each other.
One spur gear is configured as a drive spur gear 11-1 coaxially fixed to the drive roller 5, and the other spur gear is a driven spur gear 11 arranged so as to mesh with the drive spur gear 11-1. -2, and the power of the drive roller 5 is transmitted to the driven spur gear 11-2 via the drive spur gear 11-1.

The driven means 12 is composed of a pair of spur gears meshing with each other, and one spur gear is constituted as a driven spur gear 12-1 coaxially fixed to the submerged roller 1b, and the other spur gear is formed. The gear is configured as a drive spur gear 12-2 arranged to mesh with the driven spur gear 12-1, and the power transmitted to the driven spur gear 12-2 via the drive spur gear 12-1 is submerged in the liquid. It is transmitted to the roller 1b.

Further, the driving means 11 and the driven means 1
The power of the drive means 11 interposed between the driven means 1 and the driven means 1
The power transmission means 13 for transmitting to the drive means 2 is the drive means 1
A spur wheel 13-1 coaxially fixed to the driven spur gear 11-2 and a spur wheel 13-2 coaxially fixed to the drive spur gear 12-2 of the driven means 12. A vehicle 13-, which is disposed laterally in the horizontal direction with respect to the vehicle 13-1 and above the vehicle 13-2, and includes a pair of sprockets arranged coaxially with each other.
3 and 13-4, which are cars 13-1 and 1
Chain 14-1 and cars 13-2 and 13 between 3-3
-4 is operatively connected by a chain 14-2. Thus, the chain 14-1 and the chain 14
-2 and -2 are arranged at right angles to each other. The power of the drive roller 5 transmitted to the driven spur gear 12-2 by the power transmission means 13 is transmitted to the drive spur gear 12-2 and then to the submerged roller 1b via the driven spur gear 12-1.

In the above description, the car is a sprocket and the member for operatively connecting the sprockets is a chain. However, the car may be a pulley and the member for operatively connecting the car may be a belt. Although the configuration in which each vehicle is fixed to the spur gear has been described, the vehicle and the spur gear may be integrally formed, or the vehicle may be detachably attached to the spur gear.

In the power transmission mechanism constituted by the respective means 11, 12 and 13 as described above, the power of the driving roller 5 is transmitted to the submerged roller 1b, and the submerged roller 1b.
Rotates in the same rotation direction as the drive roller 5 at the same peripheral speed as the drive roller 5. However, when it is necessary to rotate the submerged roller 1b in the direction opposite to that of the driving roller 5 unlike the above-mentioned embodiment in the configuration of the plating apparatus, it is no longer necessary to provide a space between the spur gears 11-1 and 11-2 of the driving means 11. The rotation direction can be easily changed by adopting a generally known means such as disposing one spur gear.

In the present invention, the peripheral speeds of the drive roller 5 and the submersible roller 1b are synchronized so that the resin film 2 does not slip on the outer peripheral surface of the submerged roller 1b.
Although means for this is not particularly shown, it can be easily carried out by a commonly known means such as appropriately changing the diameter of the spur gear or the wheel used.

By the way, as a simpler structure for interlocking the submerged roller 1b with the driving roller 5, the wheels 13-1 and 13-3 are not provided with the pair of wheels 13-3 and 13-4.
Although it is conceivable that the chains will be directly connected by
In the deep vertical electroplating bath used for electroplating, the outside free roller 6 and the anode 9 are provided in this power transmission path.
It is practically difficult to adopt such a structure due to the presence of obstacles such as.

Next, the auxiliary power transmission means 15 between the submersible rollers when two or more submersible rollers are provided in the vertical electroplating bath 3 as shown in FIG. 2 will be described. That is, as described above, the auxiliary power transmission means 15 for transmitting the power transmitted to the submerged rollers 1b to the submerged rollers 1a and 1c is the submerged rollers-1a and 1c.
The wheels 15-2, 15-1, 15-3, which are sprockets coaxially fixed to the wheels b, 1c, respectively, and the chains 16-1, 16-2, which operatively connect the wheels, to each other. . With such a configuration, the power of the driving roller 5 is transmitted to the submersible rollers 1a and 1c other than the submersible roller 1b through the chains 16-1 and 16-2, and these submersible rollers are driven rollers. The drive roller 5 rotates in the same direction as the drive roller 5. It goes without saying that it is also necessary to design the submerged rollers 1a, 1b, 1c so that the peripheral speed thereof is the same as that of the driving roller 5 here as well. Even if a plurality of submersible rollers are installed in the plating bath, the sprocket can be replaced with a pulley and the chain can be replaced with a belt, and the wheels and spur gears are not fixed. It is also possible to form it integrally with the vehicle or to attach the vehicle to the spur gear in a detachable manner.

Further, in the present invention, in order to improve workability when replacing the anode 9, a part of the power transmission mechanism can be easily removed. That is, the driven spur gear 11-2 of the drive means 11 and the drive spur gear 12 of the driven means 12
-2 and the power transmission means 13 are arranged on the same substantially L-shaped support body 10, and the support body 10 is mounted in the vertical electroplating bath 3. is there. Therefore, if the support 10 is removed from the plating solution tank 3, the anode 9 can be replaced without any obstacle when replacing it, which is efficient.

In the above-mentioned embodiment, the electroplating apparatus having a single vertical electroplating bath is explained, but a plurality of the vertical electroplating baths are arranged in series to continuously form the resin film. It can also be electroplated.

As described above, the submerged roller for changing the conveying direction of the resin film in the vertical electroplating liquid tank which has been conventionally used as a non-driving type free roller is the vertical plating according to the present invention. The device uses a drive system that works in synchronism with the drive roller for transporting the resin film. As a result, the rotation speed of the submerged roller and the conveyance speed of the resin film are synchronized with each other, and the occurrence of scratches due to the slip of the resin film on the outer peripheral surface of the submerged roller is prevented.

[0020]

EXAMPLES Next, examples of the present invention will be described together with comparative examples. [Example] Vertical plating shown in FIG. 1 so that the layer thickness was 5 μm on the copper coating of a copper coating polyimide resin film having a thickness of 25 μm and a width of 530 mm in which a copper coating having a thickness of 0.1 μm was provided on one surface. Electroplating of copper was performed using the equipment.
At the time of this electroplating, a vertical electroplating bath having the power transmission mechanism shown in FIG. 2 was used to interlock the submerged roller with the driving roller for transporting the resin film. The transport speed of the resin film was 35 m / hour, and the resin film tension was 5 kg. When electroplating was performed using the above plating apparatus and plating conditions, the submerged roller rotated smoothly, and a film-shaped conductive material having a good appearance and no scratches on its surface could be obtained.

[Comparative Example] Electroplating was carried out using the same vertical plating apparatus and plating conditions as in the Example, except that the power transmission mechanism shown in FIG. 2 was not provided and the submersible roller was a non-driving free roller. I went. As a result, the submerged roller was not synchronized with the transport speed of the resin film, and scratches were generated on the surface of the film-shaped conductive material.

[0022]

As described above, according to the present invention, when a long film-shaped conductive material is continuously produced by electroplating, even if the resin film is conveyed with a low tension, the surface of the resin film is damaged. Therefore, it is possible to provide a vertical plating apparatus that can continuously perform electroplating without generating the above-mentioned problem and can therefore achieve high productivity.

[Brief description of drawings]

FIG. 1 is an overall schematic view showing an embodiment of a plating apparatus having a vertical plating apparatus for continuously electroplating a resin film by a reel-to-reel method according to the present invention.

FIG. 2 is a schematic explanatory view showing an embodiment of a vertical plating apparatus according to the present invention.

[Explanation of symbols]

1a, 1b, 1c Liquid Submersible Roller 2 Resin Film 2a Resin Film 2b With Conductive Layer 2b Film Conductive Material 3 Vertical Electroplating Liquid Tank 4 Plating Liquid 5 Drive Roller 6 Free Roller 7 Outgoing Roller 8 Winding Roller 9 anode 10 support 11 drive means 11-1, 12-2 drive spur gears 11-2, 12-1 driven spur gear 12 driven means 13 power transmission means 13-1, 13-2, 13-3, 13-4 , 15-2,
15-1, 15-3 vehicles 14-1, 14-2, 16-1, 16-2 chain 15 auxiliary power transmission means

Claims (5)

[Claims] 1. A structure comprising at least one vertical electroplating bath, at least one submerged roller provided in the bath, and at least one drive roller provided above the bath. In the continuous electroplating apparatus described above, a driving means is fixed to the driving roller, a driven means that is rotated by the power of the driving means is fixed to the submerged roller, and the driving means is interposed between the both means. A vertical plating apparatus, characterized in that a power transmission means for transmitting power to the driven means is interposed and the driving roller causes the submerged roller to rotate at the same peripheral speed. 2. The drive means comprises a drive spur gear coaxially fixed to the drive roller and a driven spur gear arranged so as to mesh with the drive spur gear, and the driven means comprises the liquid spur gear. A driven spur gear coaxially fixed to the middle roller,
A drive spur gear that is arranged so as to mesh with the driven spur gear, the power transmission means being coaxially fixed to the driven spur gear of the drive means A vehicle fixed coaxially, and a pair of vehicles arranged between the two vehicles and arranged coaxially with each other,
One of the pair of wheels is operatively coupled to the wheel fixed to the driven spur gear of the drive means, and the other is operatively coupled to the wheel fixed to the drive spur gear of the driven means to rotate in synchronization. The vertical plating apparatus according to claim 1. 3. An auxiliary power transmission means for transmitting the power transmitted to the submerged roller to an additional submerged roller provided in the plating liquid tank, the auxiliary power transmission means comprising: The vertical plating apparatus according to claim 1 or 2, comprising a wheel fixed coaxially to each of the submersible rollers, the wheels being operatively coupled and rotating in synchronization. 4. The vertical type according to claim 2, wherein the operative coupling is implemented by a sprocket for the wheel and a chain, or by a belt for the vehicle. Plating equipment. 5. The driven spur gear of the drive means, the drive spur gear of the driven means, and the pair of wheels of the power transmission means are arranged on the same support, and the support is in the liquid tank. It is attached and any one of Claims 1-4 characterized by the above-mentioned.
The vertical plating device according to the item.